LTC1345INW View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC1345INW Datasheet PDF : 12 Pages
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LTC1345
AC ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V ±5% (Notes 2, 3), unless otherwise specified.
SYMBOL
tR, tF
tPLH
tPHL
tSKEW
tPLH
tPHL
tSKEW
tZL
tZH
tLZ
tHZ
fOSC
BRMAX
PARAMETER
Transmitter Rise or Fall Time
Transmitter Input to Output
Transmitter Input to Output
Transmitter Output to Output
Receiver Input to Output
Receiver Input to Output
Differential Receiver Skew, tPLH – tPHL
Receiver Enable to Output LOW
Receiver Enable to Output HIGH
Receiver Disable From LOW
Receiver Disable From HIGH
Charge Pump Oscillator Frequency
Maximum Data Rate (Note 4)
CONDITIONS
MIN TYP MAX
Figures 1 and 3, VOS = 0V
q
Figures 1 and 3, VOS = 0V
q
7
40
25
70
Figures 1 and 3, VOS = 0V
q
Figures 1 and 3, VOS = 0V
Figures 1 and 4, VOS = 0V
q
Figures 1 and 4, VOS = 0V
q
Figures 1 and 4, VOS = 0V
Figures 2 and 5, CL = 15pF, S1 Closed q
Figures 2 and 5, CL = 15pF, S2 Closed q
Figures 2 and 5, CL = 15pF, S1 Closed q
Figures 2 and 5, CL = 15pF, S2 Closed q
25
70
0
49
100
52
100
3
40
70
35
70
30
70
35
70
200
q
10
15
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
kHz
Mbaud
Note 1: The absolute maximum ratings are those values beyond which the
safety of the device cannot be guaranteed.
Note 2: All currents into device pins are termed positive; all currents out of
device pins are termed negative. All voltages are referenced to device
ground unless otherwise specified.
Note 3: All typicals are given for VCC = 5V, C1 = C2 = C3 = 1µF ceramic
capacitors and TA = 25°C.
Note 4: Maximum data rate is specified for NRZ data encoding scheme.
The maximum data rate may be different for other data encoding schemes.
Data rate is guaranteed by correlation and is not tested.
TYPICAL PERFOR A CE CHARACTERISTICS
Transmitter Output Current
vs Temperature
13
VCC = 5V
12
Transmitter Output Current
vs Output Voltage
13
TA = 25°C
VCC = 5V
12
11
11
10
10
9
–50 –25
0 25 50 75 100 125
TEMPERATURE (˚C)
LTC1345 • TPC01
9
–2.0 –1.5 –1.0 –0.5 0 0.5 1.0 1.5 2.0
OUTPUT VOLTAGE (V)
LTC1345 • TPC02
Transmitter Output Skew
vs Temperature
20
VCC = 5V
15
10
5
0
–50 –25
0 25 50 75 100 125
TEMPERATURE (˚C)
LTC1345 • TPC03
3
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